Folding roller support



Nov. 28, 1933. H. A. w. WOOD 1,937,453

FOLDING ROLLER SUPP ORT Original Filed March 51, 1928 3 hee heet lfi/enzfar Jar A. 22/12 260? FOLDING ROLLER SUPPORT Original Filed March51, 1928 3 Sheets-Sheet 2 Mml' Z4 l i .14 1.55. 5511-. 75

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Nov. 28, 1933. H. A. w. wocn FOLDING ROLLER SUPPORT 5-Sheet 3 J77/9/6127" j/Wf/A are 750/. E A M Ongmal Flled March 31 1928 PatentedNev. 28, 1933 1,937,452 FOLDING ROLLER SUPPORT. Henry A. Wise Wood, NewYork, N. Y., assignor V vto Wood Newspaper Machinery Corporation, NewYork, N. Y., a corporation'of Virginia Application March 31 1928. Serial,No. 266,229 f Renewed May 22, 71931 j a Claims. (01. 270-17) Thisinvention relates to supporting means for the'folding rollers of afolding machine.

The principal objects 'of the invention are to provide an improvedadjustable meansfor controlling the distance between the folding rollersto enable them to operate upon folded products of difierent thicknesses;to provide the two, folding rollers with means whereby, when a chokeoccurs, one of the rollers will automatically fall out of position,permitting the papers to be cleared out; and to provide this means insuch form that the rollerscan be replaced very readily intheir originalposition withoutchanging their adjustment.

Other objects and advantages of the invention will appear hereinafter. rr Reference is to be had to the accompanying drawings, in which Fig.1 isan end view of a folding couple withbodiment of this invention; 1 i

Figs. 2 and 3 are diagrammatic end views showing the adjustment forproducts of different thicknesses; i

Fig. 4 is a plan of the supporting means for one end of the foldingrollers; a Fig. 5 is a similar view showing the other end;

- Fig. B-is an end view of Fig. 4;

Fig. 7 is aside elevation of the same showing the frame of the machinein section;

Fig. 8 is an enlarged end elevation like Fig. 1, showing the adjustingmeans;

Fig. 9 isa plan of the adjusting screw and its 2, the folding rollerssupplied with a preferred emconnected parts; I I V 10 is a plan, partlyin section, of the means for adjusting the two ends of one of the r l 1Fig. 11 is a end view of the dial shown inl ig. 8.; and i r Fig. 12,is'an end view of ning the two folding rolls. I j The most frequentchokes in a newspaper 0 the; gearing for runthreaded right and lefthand.

folder occur in the folding rolls. It is important, T

rectly supportedat eachend by'bracketsl l and V 14% which are pivoted:on studs 15 carried by the frame-160i ,the'machine. Each'bracket 14 and1d carries at the side a pivot stud 17 on which is pivotally mounted aswinging bracket 18 which 9 isthe real support for the folding rollershaft. Each swinging bracket 18-is located. of course. on the inner sideof the bracket 14 or 14% and.

carries ball-bearings for the end'of the folding roll shaft. p rEach'bracket 18 is normallyfixed tothe pivoted bracket 14 or .14 by ashear pin 19, and in ordi-' nary operation thes'e two brackets act asone. Each'bracket 14 and-14*. is provided with a stop pin 20, againstwhich the bracket 18 engages 1,

' when it' drops down due to the shearing ofthe pin 19. This occurs whenachoke-of paper exerts enough pressure on the folding roll to break thepins 'at both ends.

The pin 19 is held. in place by a set screw 21 and 7%.

can be taken out when broken, and replaced by a new one very readily toset the roll back in the position which it previously occupied. andwithout any change of the adjustment. o I

The folding rolls are driven by a gearr22 on the 9,. foldingcylindershaftvmeshing with a gear 23 on the shaft of the folding roll13. 7 On this shaft is a gear 24 which. in turn, meshes with a gear 24.of the same size on the shaft of the folding roll 12. 1

- The folding roll supports are made the same wayat both ends of eachfolding roll, and the same .way. but of the opposite hand,,at the endsof the'two rolls. The brackets 191 and 14 are provided with open-endedslots 25' "and'26 for're-i ceiving' studs 27 and 27 on a pair'of nuts28;

Thesenuts receive' an-adjusting screw -29..which has a right and lefthand thread. so that uporrturning the screw the rolls are moved towardor fromeach other. 951 Behind the bracket having the slot 26 is a spring30 on'the': adjusting screw 29 held in position by a nut and check-nut31 for holding the bracket 14 yieldingly against the stud: 27 inthe slot26. The other .slot 25 is vertical and therefore posi- On each of theadjusting'screwsZQ is'an adjusting sleeve 32 threaded into a hole in theframe.

It; can be moved out and in, being providedwith 7-105 spanner holes 33for that purpose, and with a check nut 34.

On the end of the" screwv 295is a dialf35 numbered in accordance withthe conditionsexisting. and a stationary-zero point 36 is carried'by.the frame. This provides a reading to show how far 110 number of sheets.I

Of course it will be understood that the two ends 7 of both rollersshould be adjusted alike ordinarily,

and for that reason each one of the two adjusting screws 29 is providedwith a gear or toothed wheel 38. A shaft 39 extends across the machinehaving twoworms or gears 40 meshing with the gears 38, and when they areboth turned alike will adjust the two screws 29 alike.

One of these worms is fixed to, the shaft 39 and the other is rotatablethereon but fixed to a sleeve 41. On the sleeve is a hand wheel 42 andon the shaft 39 is a hand wheel 4:3 Therefore these two hand wheels canbe turnedtogether very conven-' iently or one of them turned separatelythe rolls. v g, m In this way it will be seen that when a choke occursone of the shear pins will break. This allows the roll to fall down asindicated in dotted lines in Fig. 6 and permits of clearing thepapersaway from the folder without bendingthe folding roll'shafts orinjuring any of the parts. When this is done, theroll is moved up to itsnormal position andthe shear pins replaced, all without any change-intheadjustment of. the distance between the folding rolls.

Although I have illustrated and described only a single formoftheinvention, I am aware-of the factthat changes canibe made therein by anypersonskill'ed in the art without departing from the scope of theinvention as expressed in the claims. Therefore, I do. not wish to belimited to the exact form shown, but what I do claim is:( 1. In afolding couple comprising a pair of folding rolls, the combination of apair of movable supporting brackets, means for adjusting them, bracketsmovably carried by the first named brackets and having bearings for theends of the folding rolls, and frangible means for normally holding thelast named brackets in fixed position relative to saidadjustablebrackets.

2. In a folding couple'comprising a pair of folding rolls, thecombination of a pair of pivoted supporting brackets, means foradjusting themsi-' multaneously in opposite directions about theirpivots, brackets pivotally carried by the first named brackets andhaving bearings for the endsof the folding rolls, and frangible meansfor normally holding the last named brackets in fixed positionrelativeto said adjustable brackets: 3. In a folding couple comprising apair of folding rolls, the'combination of a pair ofpivoted supportingbrackets, means for adjusting them simultaneously in. oppositedirectionslabout' their pivots, brackets pivotally carried by' the firstnamed brackets andhaving bearings for the ends of the folding rolls, andfrangible means for normally holding the last named brackets in fixedpositionrelative to said-adjustable brackets, the pivots for the lastnamed brackets being" located farther apart than and on opposite sides.of the axes of the bearings; I I

4. In a folding couple comprising a pair'of V folding rolls, thecombination .of a pair of. pivoted supporting brackets, means foradjusting them 8 simultaneously. in opposite directions about theirpivots, brackets pivotally carried by the first named brackets andhaving bearings for the ends of the folding rolls, frangible means fornormally holding the last named brackets in fixed position relative tosaid adjustable brackets; a right and left hand adjustin screw for thetwo supporting to'line up L brackets at one end of .the rolls, positivemeans for connecting one bracket with the screw and yielding means forconnecting the other bracket with the screw. V

5. In a folding couple comprising a pair of folding rolls, thecombination of a pair of pivoted supportingbrackets, means for adjustingthem simultaneouly in opposite directions about their pivots, bracketspivotally carried by the first named brackets and having bearings forthe ends of the folding rolls, frangible means for normally holding thelast named brackets in fixed position a relative to said adjustablebrackets, a right and l'eft hand adjusting screw for the two Supportingbrackets at one end of the rolls, said screw being longitudinallyadjustable by turning it, and a dial operated by the screw andcalibrated to show how many folds of paper can be passed betweentherollsin any adjusted position.

6. In a folding couple comprising a pair of folding rolls, thecombination of a pair of pivoted supporting brackets, means for Iadjusting them simultaneously in opposite directions about-their pivots,brackets pivotally carried by the'first named brackets and havingbearings for the ends of thefolding rolls, frangible means for normallyholding the last named brackets in fixed position relative to saidadjustable brackets, said frangible means consisting of a shear pin, anda stop on:

each supporting bracket for the last named bracket. v

'7. In a folder, the combination of a pair of adjustable brackets onopposite sides of the folder, a pair of brackets each pivotallysupported by one of the adjustable brackets, shear pins for fixing eachof the second brackets to one of the adjustable-ones, and bearings forthe opposite ends of a folding roll on the secondbrackets, whereby whena choke occurs and the pins arebroken the rollcan swing. out ofposition.

8. In a folding machine, a pair of folding rolls, a folding bladeadapted to tuck a sheet into the bite of the said rolls for the purposeof folding it, resilient means for permitting the rolls to yieldslightly during the folding operation, and suddenly releasable meansnormally holding one of the rolls with respect to said resilient meansbut adapted to act to free one of the said rolls and permit it torelease the sheet in theevent'of' a paper choke which would otherwiserequire the rolls to be suddenly separated a greater distance than thatfor which they are set for normal operation.

i 9. A folding mechanism including in combination a folding cylinder, apair of folding rollers, means carried by said'cylinder for folding, agroup of sheets between; said rollers and'means normally holding saidrollers unyielding and adjacent to'the' folding cylinder andautomatically releasing said rollers under excessive strains to movetherollers away from the folding cylinder.

either end of said rollers,pins for each arm nor-. 156

- j j 10.,A folding mechanism including in'combina tion a pair offolding rollers, means for folding a mally holding said rollers'infolding relation but releasing said rollers on choked folds.

12. A folding mechanism including in combination a pairof foldingrollers, means for folding a group of sheets between said rollers,pivoted arms at either end of said rollers, pins normally holding saidrollers in folding'relation but independently releasing said rollers onchoked folds.

13. A folding mechanism including in combination a pair of foldingrollers, means for folding a groupof sheets between said rollers andmeans normally holding said rollers adjacent to the folding cylinder butautomatically permitting free movement of said rollers independently ofeach other under excessive strains to move the rollers away from thefolding cylinder, one of said rollers being yieldably mounted.

their ends and removable pins normally holding said rollers individuallyinfolding relation, but permitting said rollers to be moved away fromeach other. I V

HENRY A, WISE WOOD.

